Bebtson



(No Model.)

S. W. LAMBER'TSON.

FILTER.

N0.'339,791. Patented Apr. 13, 1886.

III:

lnvero Tor- Laram- N. PETERS. Pholvli'homphu, Wnhlngwn. D. C,

UNITED STATES PATENT OFFICE.

SPAFFORD W. LAMBERTSON, OF NEVARK, NEW JERSEY.

FILTER.

SPECIFICATION forming part Of Letters Patent No. 339,791, dated April 13, 1886.

Application filed July 16,1885. Serial No. 171,797.

To aZZ whom it may concern.-

Be it known that I, S AEFORD XV. LAM- BERTSON, a citizen of the United States, residing at Newark, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Faucet- Filters; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use-the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

The object of this invention is to secure increased durability, to reduce the cost of construction,and to provide a device that may be more firmly secured upon the unthreaded nose of a faucet.

The invention consists "in the arrangements and combinations of parts, substantially as will be hereinafter set forth, and finally embodied in the clause of the claim. 1

Referring to the accompanying drawings, in which like letters indicate corresponding parts in each of the several figures, Figure 1 is a side elevation of a faucet having the improved filter attached; and Figs. 2 and 3,avertical section of the filter, showing modifications in the constructions thereof.

In said drawings, a indicates a faucet, and I) the filter-body, which is preferably spun from sheet metal, but may be made of guttapercha, hard rubber, or other plastic material, or may be of any other suitable material. Said body is preferably thimbleshaped, the lower end wall, 0, being perforated to allow the eXit of water, but prevent the passage of coarse solid matter, said \vall being integral with the body metal to enable the filter to more perfectly resist the force of the water and to secure a larger chamber for the filtering materials without increasing the size of the filter, as will be understood. The opposite end of the bodyis open,to allow the insertion of the filtering materials and the nose of the faucet.

At or near the top rim or open end of the body the same is provided with a holdingridge, f, or an interior groove, 9, and within said open end is preferably secured a wide and thick rubber hub or ring, h, of peculiar (No model.)

construction, whereby the filter is securely held to the nose of the faucet. The periphery of the ring is provided with a ridge, '5, which lies in the groove or against the ridge or abutment f, whereby the body is firmly held to the hub.

The perforation through the hub to receive the nose of the faucet is narrower near its lower edge, and flares or widens toward its upper end. By this construction the lower end of the hub binds the faucet-nose, while the upper end thereof is secured to the interior of the filter-body, so that when the faucet is turned and the pressure of the water is brought to bear on the said filter the rubber where it engages the faucet tends to turn inward and to bind or hug the said nose so closely and firmly as that a straight downward draft or pull will have no effect of withdrawing the filter from the nose of the faucet. By turning the rubber while pulling it the same may easily be withdrawn.

When the perforated diaphragm or wall or sieve of the filter is integral with the body, I form a shoulder, j, at the sides thereof, and over the same I spin a nozzle, K, which projects below the sieve or perforated diaphragm to gather or compress the many streams of water flowing through the sieve into one.

Within the filter, above the sieve, are arranged charcoal or granulated bone-black l, and above this a sponge, K, to filter or clarify the water in its passage from the faucet.

To hold the filter upon a threaded faucet, I may employ a threaded piece in connection with the thimble-like body in lieu of the elastic ring, as in Fig. 2.

\Vhat I claim as new is In combination, in a filter, the thimble having a perforated end wall and a shoulder, j, formed at the sides thereof, and a nozzle, K, held in position by said shoulder, and a ring secured in the open end of the thimble for holding the same upon the faucet, substantially as set forth.

In testimony that I claim the foregoing I have hereunto set my hand this 9th day of July, 1885.

SPAFFORD \V. LAMBERTSON.

Vitnesses:

OLIVER DRAKE, OSCAR A. MIoHEL. 

